Paladyum Komplekslerine Dayalı İyodür-Seçici Karbon Pasta Elektrot Hazırlanması

Yıl 2018, Cilt: 22 Sayı: 1, 237 - 246, 16.04.2018

Ayça Demirel Özel , Semra Muratoğlu H. Elif Kormalı Ertürün

https://doi.org/10.19113/sdufbed.82321

Cited By: 1

Öz

Dibromo[1,1′-bis(difenilfosfin)ferrosen] paladyum(II) (iyonofor I) ve dikloro[1,1′-bis(difenilfosfin)ferrosen] paladyum(II) (iyonofor II) olarak adlandırılan paladyum komplekslerinin kullanıldığı yeni iyodür-seçici karbon pasta elektrotlar hazırlandı. İyonofor I ve II kullanılarak optimum karbon pasta bileşimiyle hazırlanan elektrotların pH 4,0’da sırasıyla −43,2 ± 0,6 mV/pI ve −43,8 ± 0,6 mV/pI eğimle, 3,5×10⁻⁶ M ve 3,7×10⁻⁷ M gözlenebilme sınırıyla, 1,0×10⁻⁵ − 1,0×10⁻¹ M ve 1,0×10⁻⁶ − 1,0×10⁻¹ M derişim aralığında doğrusal cevap verdikleri gözlendi. Önerilen elektrotların kısa cevap sürelerine, 3 aylık ömre, iyi bir tekrarlanabilirlik ve üretilebilirliğe sahip oldukları bulundu. Ayrıca, elektrotlar, iyodür içeren ilaç numunelerinde iyodürün potansiyometrik tayini için indikatör elektrot olarak başarılı bir şekilde kullanıldı.

Anahtar Kelimeler

Karbon pasta elektrot, İyodür-seçici elektrot; Potansiyometri; Paladyum kompleksleri

Kaynakça

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